نتایج جستجو برای: oxidation resistance
تعداد نتایج: 486887 فیلتر نتایج به سال:
An experimental investigation was conducted to find the effect of spraying method of coating of Thermal Barrier Coatings (TBCs) on their oxidation behaviour and resistance to various thermal loading. Isothermal and thermal shock tests were performed in order to study oxidation behaviour of air plasma sprayed Bond Coat (BC) and assess its effect on TBCs lifetime under the stated loadings. Specim...
DDTC, SOD, Sulfite Oxidation 50 U SOD in 1 ml or 10 m M DDTC do not much change sulfite oxidation due to the free radicals procuding system xanthin-xanthin oxidase. Sulfite oxidation due to the activity of this free radicals producing system proceeds probably as the univalent oxidation o f sulfite. The role o f SOD in SO, resistance mechanism in plants and the role o f DDTC as S 0 2 oxidation e...
In this study, Mo-14Si-10B and Mo-57Si-10B (at%) elemental powders were separately milled using an attritor mill. Mechanically alloyed powders were agglomerated and annealed. Then, powders of Mo-Si-B as alloyed (with composites) and agglomerated (without composites) were plasma sprayed onto plain carbon steels. The samples, both coated and non-coated, were subjected to isothermal oxidation test...
BACKGROUND Generation of reactive oxygen species (ROS) during exercise has been linked to increased oxygen consumption. ROS could also be produced by other mechanisms-for example, a respiratory burst of neutrophils or catecholamine auto-oxidation-when oxygen consumption is only moderately increased. OBJECTIVES To investigate noradrenaline concentrations, neutrophil counts, plasma antioxidants...
Background: Generation of reactive oxygen species (ROS) during exercise has been linked to increased oxygen consumption. ROS could also be produced by other mechanisms—for example, a respiratory burst of neutrophils or catecholamine auto-oxidation—when oxygen consumption is only moderately increased. Objectives: To investigate noradrenaline concentrations, neutrophil counts, plasma antioxidants...
Metabolic flexibility is the capacity for the organism to adapt fuel oxidation to fuel availability. The inability to modify fuel oxidation in response to changes in nutrient availability has been implicated in the accumulation of intramyocellular lipid and insulin resistance. The metabolic flexibility assessed by the ability to switch from fat to carbohydrate oxidation is usually impaired duri...
Oxidation of low-density lipoprotein (LDL) has been strongly suggested as a key factor in the pathogenesis of atherosclerosis. Thus the inclusion of some anti-oxidant compounds such as Satureja Khozistanica,vitamin E and coenzyme Q10 in daily dietary food stuff may inhibit the production of oxidized LDL and may decrease both the development and the progression of atherosclerosis. The present st...
The present work investigates the high temperature oxidation and corrosion behaviour of high entropy superalloys (HESA). A high content of various solutes in HESA leads to formation of complex oxides, however the Cr and Al activities of HESA are sufficient to promote protective chromia or alumina formation on the surface. By comparing the oxidation and corrosion resistances of a Ni-based supera...
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